Chicago is the largest city in the US state of Illinois. With nearly 2.7 million residents, it is the most populous city in the Midwestern United States and the third most populous in the USA, after New York City and Los Angeles. Its metropolitan area, sometimes called “Chicagoland,” is the third largest in the United States, the largest in the Great Lakes Megalopolis, and the 27th most populous urban agglomeration in the world, with an estimated 9.8 million people in the three US states of Illinois, Wisconsin, and Indiana. Chicago is the county seat of Cook County, the second most populous county in the United States, after Los Angeles County, California.
Chicago was incorporated as a town in 1833, near a portage between the Great Lakes and the Mississippi River watershed. Today, the city retains its status as a major hub for industry, telecommunications and infrastructure, with O’Hare International Airport being the second busiest airport in the world in terms of traffic movements. Read the rest of this entry